<?php

/*
	Question2Answer (c) Gideon Greenspan

	http://www.question2answer.org/

	
	File: qa-include/qa-page-questions.php
	Version: See define()s at top of qa-include/qa-base.php
	Description: Controller for page listing recent questions


	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	More about this license: http://www.question2answer.org/license.php
*/

if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
    header('Location: ../');
    exit;
}

require_once QA_INCLUDE_DIR . 'qa-db-selects.php';
require_once QA_INCLUDE_DIR . 'qa-app-format.php';
require_once QA_INCLUDE_DIR . 'qa-app-q-list.php';

$categoryslugs = qa_request_parts(1);
$countslugs = count($categoryslugs);

$sort = ($countslugs && !QA_ALLOW_UNINDEXED_QUERIES) ? null : qa_get('sort');
$start = qa_get_start();
$userid = qa_get_logged_in_userid();


//	Get list of questions, plus category information

switch ($sort) {
    case 'hot':
        $selectsort = 'hotness';
        break;

    case 'votes':
        $selectsort = 'netvotes';
        break;

    case 'answers':
        $selectsort = 'acount';
        break;

    case 'views':
        $selectsort = 'views';
        break;

    default:
        $selectsort = 'created';
        break;
}

list($questions, $categories, $categoryid) = qa_db_select_with_pending(
    qa_db_qs_selectspec($userid, $selectsort, $start, $categoryslugs, null, false, false, qa_opt_if_loaded('page_size_qs')),
    qa_db_category_nav_selectspec($categoryslugs, false, false, true),
    $countslugs ? qa_db_slugs_to_category_id_selectspec($categoryslugs) : null
);

if ($countslugs) {
    if (!isset($categoryid))
        return include QA_INCLUDE_DIR . 'qa-page-not-found.php';

    $categorytitlehtml = qa_html($categories[$categoryid]['title']);
    $nonetitle = qa_lang_html_sub('main/no_questions_in_x', $categorytitlehtml);

} else
    $nonetitle = qa_lang_html('main/no_questions_found');


$categorypathprefix = QA_ALLOW_UNINDEXED_QUERIES ? 'questions/' : null; // this default is applied if sorted not by recent
$feedpathprefix = null;
$linkparams = array('sort' => $sort);

switch ($sort) {
    case 'hot':
        $sometitle = $countslugs ? qa_lang_html_sub('main/hot_qs_in_x', $categorytitlehtml) : qa_lang_html('main/hot_qs_title');
        $feedpathprefix = qa_opt('feed_for_hot') ? 'hot' : null;
        break;

    case 'votes':
        $sometitle = $countslugs ? qa_lang_html_sub('main/voted_qs_in_x', $categorytitlehtml) : qa_lang_html('main/voted_qs_title');
        break;

    case 'answers':
        $sometitle = $countslugs ? qa_lang_html_sub('main/answered_qs_in_x', $categorytitlehtml) : qa_lang_html('main/answered_qs_title');
        break;

    case 'views':
        $sometitle = $countslugs ? qa_lang_html_sub('main/viewed_qs_in_x', $categorytitlehtml) : qa_lang_html('main/viewed_qs_title');
        break;

    case 'needs':
        $linkparams = array();
        $sometitle = $countslugs ? qa_lang_html_sub('main/needs_qs_title', $categorytitlehtml) : qa_lang_html('main/needs_qs_title');
        $categorypathprefix = 'questions/';
        $feedpathprefix = qa_opt('feed_for_questions') ? 'questions' : null;
        break;

    default:
        $linkparams = array();
        $sometitle = $countslugs ? qa_lang_html_sub('main/recent_qs_in_x', $categorytitlehtml) : qa_lang_html('main/recent_qs_title');
        $categorypathprefix = 'questions/';
        $feedpathprefix = qa_opt('feed_for_questions') ? 'questions' : null;
        break;
}


//	Prepare and return content for theme

$qa_content = qa_q_list_page_content(
    $questions, // questions
    qa_opt('page_size_qs'), // questions per page
    $start, // start offset
    $countslugs ? $categories[$categoryid]['qcount'] : qa_opt('cache_qcount'), // total count
    $sometitle, // title if some questions
    $nonetitle, // title if no questions
    $categories, // categories for navigation
    $categoryid, // selected category id
    true, // show question counts in category navigation
    $categorypathprefix, // prefix for links in category navigation
    $feedpathprefix, // prefix for RSS feed paths
    $countslugs ? qa_html_suggest_qs_tags(qa_using_tags()) : qa_html_suggest_ask($categoryid), // suggest what to do next
    $linkparams, // extra parameters for page links
    $linkparams // category nav params
);

return $qa_content;


/*
	Omit PHP closing tag to help avoid accidental output
*/